rayp1
Member
- Location
- Phoenix, Az, USA
Situation: Underground direct burial cable entering a concrete pre-fab vault are being installed 2 conductors- 1250kcmil per phase for three (6") conduits where each conduit will be 2 conductors of A phase, etc. for all three phases. The PVC schedule 80 conduit are only 8 to 10 feet long stubbed out the bottom of the vault. The concrete vault has vertical rebar between each phase conduit. Each conduit has 2 conductors, 3 conduits cover all three phases. Question: Will this cause excessive overheating to damage the cables? Question: If this will damage the cable, Besides cutting out the rebar steel and replacing with fiber rod and other solutions for this large concrete box? Thank you.